GPT-6.1 Sol replaces GPT-6 Sol after just 7 days, with near-Astra intelligence

OpenAI released GPT-6.1 Sol just one week after GPT-6 Sol, achieving near-Astra level intelligence (scoring only 1 point below GPT-6 Astra) while costing less than a quarter of the price per task. The model maintains the same base pricing as GPT-6 Sol ($2/$10 per million tokens) with an improved cache read discount, and shows significant improvements across multiple benchmarks including an 8-point jump in accuracy with reduced hallucination rates.